CVE-2024-41123 REXML DoS vulnerability
An attacker can cause a denial of service in applications using the REXML Ruby library by sending XML with specific character sequences.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-41123?
CVE-2024-41123 is a medium-severity denial of service vulnerability in ruby rexml, published on 1 Aug 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
REXML is an XML toolkit for Ruby. The REXML gem before 3.3.2 has some DoS vulnerabilities when it parses an XML that has many specific characters such as whitespace character, `>]` and `]>`. The REXML gem 3.3.3 or later include the patches to fix these vulnerabilities.
Weakness: CWE-400
Which versions are affected by CVE-2024-41123?
2 open source packages ship an affected version, including rexml. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
rexml RubyGems | All versions | 3.3.3 |
rexml RubyGems | All versions | 3.3.3 |
Products include Ruby-Lang Rexml.
How do I fix CVE-2024-41123?
Upgrade rexml to 3.3.3 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-41123 being exploited?
There is no known exploitation of CVE-2024-41123 in the wild and no public exploit code.
Other vulnerabilities in ruby rexml
Sources
Also known as ALPINE-CVE-2024-41123, DEBIAN-CVE-2024-41123, ECHO-ec4d-0931-98ce, GHSA-r55c-59qm-vjw6, MINI-jwh7-xcc4-35p8, UBUNTU-CVE-2024-41123.